Installation, Operation
and Maintenance
Instructions
Vibratory
Feeder
MODEL HS-42
HI-SPEED
ERIEZ WORLD HEADQUARTERS: 2200 ASBURY ROAD, ERIE, PA 16506–1402 U.S.A.
WORLD AUTHORITY IN SEPARATION TECHNOLOGIES
VM-3842H
2
CAUTION
Safety labels must be affixed to this product.
Should the safety label(s) be damaged, dislodged
or removed, contact Eriez for replacement.
Introduction
This manual details the proper steps for installing, operating and
maintaining the Eriez HS-42 Vibratory Feeder.
Careful attention to these requirements will assure the most efficient
and dependable performance of this equipment.
If there are any questions or comments about the manual, please call
Eriez at 814-835-6000 for Vibratory Feeder assistance.
© 2019 ERIEZ MAGNETICS ALL RIGHTS RESERVED
Vibratory Feeder: Model HS-42 Hi-Speed
3
Table of Contents
ERIEZ VIBRATORY FEEDER - MODEL HS-42
INSTALLATION ..................................................................................................................4
Mounting ...................................................................................................................... 4
Electrical Connections ................................................................................................. 4
OPERATION AND MAINTENANCE ................................................................................... 4
Tuning Guide ................................................................................................................5
Tuning for Non-standard Trays ....................................................................................6
Tuning for Different Conditions of Tray Loading ........................................................... 6
REPAIRS ........................................................................................................................ 6
Coil Replacement ......................................................................................................... 6
Spring Replacement .................................................................................................... 8
Armature Replacement ................................................................................................ 9
TROUBLESHOOTING ..................................................................................................... 10
4
Installation
MOUNTING
This Hi-Vi model should be mounted on a flat surface,
fastened with bolts or screws of proper size. Use lock
washers under the bolt heads.
FIGURE 1
ELECTRICAL CONNECTIONS
NOTE: The Eriez Vibratory Feeder cannot be operated
from a DC source.
All wiring should conform to all applicable electrical codes.
1. Check the specifications of the power line to be
certain that they are the same as those shown on the
nameplate of the control box.
2. Connect the black and white wires in the Feeder power
cord to the terminals in the control box marked “Output”.
3. Connect the green wire (ground) to the lug provided in
the box.
4. Connect the power line to the terminals in the control
box marked “Line”.
5. Connect the lug in the control box to a good earth
ground (a cold water line is excellent). If a well-grounded
metallic conduit system is used, the latter connection
may be dispensed with.
6. On multiple drive feeders (two or more drives on one
tray) all drives should be wired electrically in phase. The
black wires from each power cord should be connected
together and the white wires connected together. The
black wires should be connected to the positive side
of the single phase input voltage and the white wires
should be connected to the negative side.
YOU ARE NOW READY TO START YOUR VIBRATORY
FEEDER
FIGURE 2
COVER OUTPUT LINE GROUND
LUG
Operation &
Maintenance
Do not operate the unit with associated equipment
touching any part of the unit.
To start the feeder after all connections have been
made, apply power to the line connected to the feeder. If
a controller is used, operate the switch on the controller
and adjust the output voltage to maximum by rotating
the control knob to the full clockwise position. Ordinarily
(at ambient room temperatures) the unit will take about
two minutes to reach full steady-state displacement.
After full steady-state displacement has been attained,
use the controller to adjust the unit to the desired feed
rate.
No routine maintenance or lubrication is required,
except that any accumulation of foreign matter should
be periodically removed from between the tray-tiebar
assembly and the body, and from between the body
and the mounting surface, to prevent restriction of
movement of the vibratory elements.
IMPORTANT NOTE:
Special Trays and Attachments
Always consult Eriez before designing or constructing
special trays for your feeder drive. Also, contact Eriez
before modifying or attaching to any tray supplied by
Eriez. Changes made without Eriez’ prior approval will
void the warranty.
Vibratory Feeder: Model HS-42 Hi-Speed
5
TOTAL DISPLACEMENT
.012"
.090"
.060"
.030"
0
.105"
.075"
.045"
.015"
ERIEZ MFG. CO., Erie, PA
Stroke gauge under vibration
(shown at .090" displacement)
TUNING GUIDE
General Information
The tuning means is provided solely for the purpose of
mechanically tuning the unit, with its tray, to the desired
vibratory displacement at full voltage. When a unit is
furnished complete with tray, it is properly tuned to the
tray at the factory. Such tuning is naturally somewhat
different for trays of different size or weight.
Tuning is accomplished by changing the stiffness of
the tuning spring stacks of the feeder (see Figure 3).
Variations in stiffness are obtained by changing the
number of springs in the stacks and/or by changing the
thickness of fiberglass springs.
FIGURE 3
In normal operation at full voltage after warmup, the
total displacement for standard size trays, measured at
the back of the tray, is .085" to .090" (2.2 to 2.3 mm).
For trays substantially larger than standard this normal
displacement range should be reduced by .005" (.1 mm),
while for trays substantially smaller than the range may
be increased by .005" (.1 mm).
How to Measure Displacement
Position an Eriez displacement sticker on the outer side
of the tray, near the rear of the tray and at an angle of
25° from vertical (see Figure 4).
FIGURE 4
Deflection (Displacement)
With unit operating observe where the fine gray lines on
the displacement sticker meet. This point will be higher
or lower as the displacement changes. Opposite the
point where they meet, read amount of displacement. If a
rule is used, the displacement can readily be measured
as a “blurred bar” at the back of the tiebar.
The following general rules, which apply only to the
warmed-up HS-42 feeder operating ideally on the normal
side of its tuning curve, should be borne in mind when
making tuning adjustments to increase or decrease the
displacement:
1. To DECREASE the tray displacement, DECREASE
the stiffness of the tuning springs.
2. To INCREASE the tray displacement, INCREASE
the stiffness of the tuning springs.
If decreasing or increasing the tuning spring stiffness has
an opposite effect, it means that the spring stiffness is
great enough that the unit is operating on the “opposite”
side of its tuning curve. The spring stiffness should be
reduced until the behavior is in accordance with rules
1 and 2. The unit can then be properly tuned to the
desired displacement.
6
As a guide to the stiffness of individual tuning springs,
each spring is marked with a code number- example,
5-27. The first number (5) is the number of fiberglass
plies in the spring. The following number (27) indicates
the relative stiffness of the spring; the higher this number
the stiffer the spring.
The total stiffness of the tuning spring stack is the sum of
the relative stiffness numbers. By various combinations
of different ply springs having different relative
stiffnesses, practically any desired total stiffness can be
obtained.
TUNING FOR
NON-STANDARD TRAYS
(Note: See “Special Trays and Attachments”)
If it is necessary to tune the unit to an off-size or non-
standard tray, follow this procedure:
1. Attach the tray, making sure that all lockwashers are
in place and the fasteners tight.
2. Energize the unit at the nameplate voltage
and frequency.
3. (a) During tuning if a hammering or striking noise
occurs when the unit is turned off and on quickly,
the displacement is well in excess of normal.
Whether striking or not, if the displacement exceeds
the normal range for that particular size of tray
(see Tuning Guide-General Information), it must
be reduced by substituting a tuning spring leaf or
leaves of less stiffness, or by subtracting one or
more leaves, until approximately normal full voltage
displacement is attained. Then use the controller
for fine or variable control of displacement and
feed rate.
(b) During tuning if the displacement at full voltage
is below the nominal range for that particular size
tray, and greater displacement is desired, increase
the tuning spring stiffness by substituting leaves of
greater stiffness or by adding more leaves.
TUNING FOR DIFFERENT
CONDITIONS OF TRAY LOADING
Units with Eriez-built trays are factory tuned for normal
displacement (approx. .085" (2.2 mm)) with light loading
(light head load, light materials, limited depth of flow
of heavier materials), and ordinarily this tuning will not
need to be changed; however, in cases where somewhat
greater than normal loading is unavoidable, it may be
necessary to increase the tuning spring stiffness slightly
to maintain normal deflection under load. In no case,
however, should the unit be permitted to deflect more
than .090" (2.3 mm) without load.
CAUTION: A small amount of striking during
tuning is permissible, but must not be allowed
during regular operation since damage to the feeder
can result.
Repairs
COIL REPLACEMENT
Coil Replacement (Refer to the Parts List Drawing and
Figs. 5, 6, 7 & 8)
The coil in a Vibratory Feeder may eventually fail due to
over-voltage operation or normal aging.
The following procedure should be followed in removing
and replacing the electrical assembly, which includes
the coil:
1. Remove both nameplates and insert the two gap
spacers (furnished with the unit) between the
E-frame center leg and the two armature pole pieces
(see Figures 5 & 6).
2. Remove, in order, the bolts securing (a) the upper
end of the rear tuning spring stack to the tiebar, (b)
the lower ends of the spring lever arms to the body
housing, and (c) the lower end of the tiebar to the
spring bar. Lift the tray-tiebar-lever assembly away
from the body housing. (Fig. 7)
3. Remove the bolts securing the electrical assembly
to the body housing and lift the assembly out of the
body housing, (see Figure 8).
4. If the coil is defective, the entire E-Frame assembly
including the coil must be replaced (order from Eriez
parts list).
Vibratory Feeder: Model HS-42 Hi-Speed
7
FIGURE 6
AIR GAPS - ADJUST TO .093" (2.36 MM)
FIGURE 5
GAP
SPACERS
FIGURE 8
E-FRAME
ELECTRICAL
ASSEMBLY
COIL
BODY HOUSING
FRONT
SPRING
STACK
TIE BAR
REAR
TUNING
SPRING
STACK
FIGURE 7
5. In reassembling the unit, first center the armature
at the bottom of the body cavity; then insert the
E-frame into the body cavity, making sure that the
center leg enters the space between the armature
pole pieces. Insert the bolts securing the electrical
assembly and fasten only finger tight.
6. Place the tray-tiebar-lever assembly into its original
position and replace, in order, the bolts securing
(a) the lower end of the tiebar to the spring bar, (b)
the lower ends of the spring lever arms to the body
housing, and (c) the upper end of the rear tuning
spring stack to the tiebar. Make sure that all tuning
spring spacers are in place and that all bolts are
tight. Note: Never add a lockwasher to a bolted joint
if that joint did not incorporate a lockwasher
as received from Eriez.
7. Loosen the electrical assembly bolts slightly and
roughly center the E-frame center leg between the
pole pieces. Insert the two spacers between the
E-frame center leg and the pole pieces and adjust
the electrical assembly forward or backward until
both spacers move freely in the gaps. Tighten
the electrical assembly plate and replace the
nameplates.
8
SPRING CHANGE OR REPLACEMENT
Refer to the Parts List Drawing and Figs. 9 & 10.
Although the non-metallic springs used in the HS-42
Feeder have outstanding life characteristics, failure may
eventually occur, especially if the displacement is greater
than normal. The symptoms of such failure will be:
1. Erratic behavior of the unit, or
2. Greatly reduced displacement.
If spring failure is suspected, the tuning spring stacks
should be removed after first inserting the two gap
spacers between the center leg of the E-frame and the
two pole pieces (see Figure 9). The purpose of this is to
hold the tiebar or tray-tiebar assembly in position while
the tuning springs are removed.
Carefully examine each tuning spring for signs of
delamination or breakage, especially in the area next to
the spring shims. A failed spring can be recognized by
the appearance of the spring surface. If this surface is
discolored or has a patchy whitish appearance, perhaps
accompanied by surface bulging or other irregularity, the
spring is defective and should be replaced with a new
spring ordered from the parts list.
2. Carefully examine both springs for signs of failure
and replace if such signs are found. A failed
spring will exhibit one or more of the following
characteristics:
(a) Looseness of the spring combined with signs of
rubbing or abrasion at the outer surface of the
cylinder. Looseness of the metal sleeve.
(b) Small crack in the elastomer around the end of the
metal sleeve, possibly with small abraded particles
of the elastomer present.
(c) Tackiness of the elastomer around the metal sleeve
and at the outer surface of the cylinder, possibly with
some outward bulging of the elastomer.
3. In replacing the elastomer springs, lay the unit on
its side so that the chamfered ends of the spring
holes are up. After making sure that the holes
and their chamfered ends are clean and free from
obstructions, lubricate the springs with a little soapy
water (never use a petroleum or silicone lubricant)
only and press them partly into place with the
thumbs. Then tap the springs back into place,
again using the small supporting block between
tiebar and work surface. Make sure that the springs
go in straight and that the steel inner sleeves
protrude equally at both ends of both spring holes.
See Figure 10.
ELASTOMER
SPRING LEVER
ARMS
ELASTOMER
SPRINGS
GAP
SPACERS
FIGURE 10
FIGURE 9
GAP
SPACER
REAR TUNING
SPRING STACK
If the feeder still exhibits signs of spring malfunction after
the tuning spring has been checked and replaced, check
the two cylindrical elastomer springs after first inserting
the two gap spacers, then removing the spring lever
arms, and finally removing the elastomer springs in the
following manner:
1. Lay the unit on its side, making sure that the gap
spacers stay in place, and use a small hammer and
flattened round bar or dowel to tap the elastomer
spring out of the body housing. Next, support the
tiebar with a small block between the tiebar and
work surface, and tap the spring out of the tiebar.
Vibratory Feeder: Model HS-42 Hi-Speed
9
4. Replace the lever arms, torque the two fastening
bolts securely, and remove the two gap spacers. If a
new elastomer spring has been installed, it may be
necessary to retune the feeder. See Tuning Guide.
CAUTION: Make sure that of the fasteners in
the assembly are tight or torqued at all times.
Periodic checks for tightness and torque should
be made to insure against possible malfunction or
damage due to loose parts. Without doing so will
void warranty.
ARMATURE REPLACEMENT
Refer to the Parts List Drawing and Figs. 5, 6, 7 & 8.
Prolonged striking may damage the armature to
an extent that it will have to be replaced. If this should
become necessary, order a new armature from the parts
list and begin by following the same instructions as for
coil replacement.
1. Continue by removing, in order, the bolts securing
(a) the upper end of the front tuning spring stacks to
the spring bar and (b) the spring bar to the armature.
2. Remove the bolts securing the elastomer diaphragm
to the body housing and lift the armature out of the
body cavity.
3. To reassemble the unit reverse the above procedure.
THE Hl-VI MAGNETIC DRIVE CIRCUIT
Old-style electromagnetic equipment has an inefficient
attract-release type operation, where a mass mounted
on springs is attracted by a DC electromagnet and
returned to its original position solely by the springs.
The new Hi-Vi method incorporates a lifetime permanent
ceramic magnet and is operated directly from an
alternating current line.
In the Hi-Vi method, the spring-mounted mass is
alternately both attracted and repelled by an AC
electromagnet assisted by the springs.
Intermeshing a fixed polarity permanent magnet with
an alternating polarity AC electromagnet eliminates the
rectifier.
It will be noted that the pole pieces to the permanent
magnet are intermeshed in the air gaps of an
electromagnet. The polarity of the permanent magnet
is fixed; the polarity of the electromagnet alternates at
the line frequency. We have shown the polarity of the
electromagnet as it would exist on one side of the sine
wave. Note that both poles of the permanent magnet are
being attracted toward the unlike electromagnet poles.
They are also being repelled in the same direction by
the like electromagnet poles. This results in four forces
accumulating to drive the armature in the same direction.
It also results in closing the magnetic circuit through the
electromagnet providing a magnetizing effect on the
permanent magnet on each side of the sine wave. The
demagnetizing force is very minor for the attracting force
and the magnetic lines of flux would much prefer to be
attracted than repelled. This always tends to place the
permanent magnet in a magnetizing circuit regardless of
where the AC current is on the sine wave. As the polarity
of the electromagnet changes, all of the forces are
reversed and the permanent magnet armature is driven
in the opposite direction.
TABLE 1. TORQUE CHART
Part Bolt Size Torque
m-kgs ft-lbs
Rear Spring Bolts 1/2-13 10.4 75
Torsion Spring Bolts 1/2-13 10.4 75
Front Tie Bar Bolts 1/2-13 6.9 50
Front Spring Bolt 3/8-16 2.8 20
Electrical Ass’y Bolts 5/16-18 2.4 17
Tray Mounting Bolts 5/16-18 3.0 22
FIGURE 11
10
CAUTION: Operation from portable engine
driven power plants.
Varying and unstable line frequency has a diverse effect
on vibratory feeders because they are tuned mechanical
devices, designed around either 50 or 60 cycle
operating frequency. Shifts in the operating point due to
changes in frequency (+ or -1 cycle) can cause higher
than normal spring stress, striking, and high line currents
which can cause drive and tray failure. When operating
from portable engine-driven power plants, be certain that
the engine is up to speed and all other loads are started
and at running speed before starting the electromagnet
feeder.
The feeder should always be stopped first when the
engine-driven power plant is shut down.
Troubleshooting
1. Misapplication
Feeder too small. Product difficult or impossible to
handle. Impossible temperatures or atmospheres.
Impossible dimensional requirements. Feeding
requirements too precise or excessive. Consult
Eriez.
2. Tampering or Changing of Base or Tray
Improper disassembly, extensions, covers, weights,
screens or other modifications or attachments
may have affected performance. Reassemble in
accordance with printed instructions or consult
Eriez.
3. Loose Spring Clamp or Tray Mounting Bolts
Tighten all bolts.
4. Coil Failure
Replace coil or coil and E-frame assembly.
Order from Eriez parts lists. Follow maintenance
instructions carefully.
5. Control Failure
Check for burned out powerstat or rheostat,
defective capacitor, defective switch, loose wiring,
defective transformer (if used). Order new parts from
Eriez. Possibility special control needed. Consult
Engineering.
6. Incorrect voltage
Check nameplate specifications and line voltage.
7. Spring Failure
See maintenance instructions. Disassemble for
examination. Tuning spring failure will show up
as white areas. Order new parts from factory and
replace per instructions.
8. Foreign Material
Examine and remove foreign material.
9. Incorrect Tuning
See maintenance instructions. To decrease
displacement and output and eliminate striking,
use fewer or thinner tuning springs. To increase
displacement, use more or thicker tuning springs.
10. Poor or Broken Weld on Tray
Check and correct.
11. Incorrect Factory Adjustment
See maintenance instructions (Gap adjustments.)
12. Sympathetic Vibration in Other Equipment
Check and correct.
Vibratory Feeder: Model HS-42 Hi-Speed
11
13. Contact with Other Equipment
Check and correct.
14. Line Voltage or Hz Variation
Check and install voltage regulator if necessary.
Check and install Hz regulator.
15. Blown Fuse or Circuit Breaker
Check for short circuits and correct.
16. Other Electrical Connections
Check all connections and correct
17. Shockmount Deterioration
Check and correct.
18. Corrosive or Abrasive Material
May require special tray. Consult Eriez.
19. Product Variation or Product Sticking to
the Tray Surface
If product density, moisture content or other
characteristics vary, customer should take own
corrective measures.
Nature of Problem
Misapplication
Tampering or Changing
of Base or Tray
Loose Spring Clamp or
Tray Mounting Bolts
Coil Failure
Control Failure
Incorrect Voltage
Spring Failure
Foreign Material Between
Tray & Reaction Mass
Incorrect Tuning
Poor or Broken
Weld on Tray
Incorrect Factory
Adjustment
Sympathetic Vibration
in Other Equipment
In Contact with
Other Equipment
Line Voltage or Hz
Variation
Blown Fuse or
Circuit Breaker
Other Electrical
Connections
Shockmount
Deterioration
Corrosive or
Abrasive Material
Product Variation or Product
Sticking to the Tray Surface
Initial
Installation
Reduced or Low
Output 1 2 5 6 7 8 9 13 14 16 19
Noisy but
Output Okay 2 3 8 9 10 11 12 13
Noisy Certain
Periods Only 13 14
Develop After Satisfactory Initial Operation
Completely
Inoperative 2 4 5 7 13 15 16
Operating but
Reduced Output 2 3 5 6 7 8 9 10 12 13 14 16 17 19
Output Okay
Too Much Noise 2 7 8 9 10 12 13 14
Gradual Fading 5 7 8 9 10 13 19
Excessive Tray
Water 18
Turbulent Flow 10 14 17
Inconsistent
Output 2 3 5 6 7 9 10 12 13 14 16 17 19
TablE 1. SERvIcE chaRT
©2019 Eriez Magnetics All Rights Reserved
World Authority in Separation Technologies
Headquarters: 2200 Asbury Road, Erie, PA 16506-1402 U.S.A.
Telephone: 814-835-6000 • Fax: 814-838-4960
www.eriez.com e-mail: [email protected]
Manufacturing Facilities: AUSTRALIA • BRAZIL • CANADA • CHINA • INDIA • JAPAN • MEXICO • SOUTH AFRICA • UNITED KINGDOM • UNITED STATES
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Eriez and Eriez Magnetics are registered trademarks of Eriez Manufacturing Co, Erie, PA
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